/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package servlets;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author recsko
 */
@WebServlet(name="feldolgoz", urlPatterns={"/feldolgoz.do"})
public class feldolgoz extends HttpServlet {
   
    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
           // TODO output your page here
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet feldolgoz</title>");  
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Alma2</h1>");

            String errormsg ="";
            if (request.getParameter("input1")==null){
                errormsg+="Input1 para<br />";
            }
            if (request.getParameter("input2")==null){
                errormsg+=" Input2 para <br />";
            }

            int x=0,y=0;
            try {
                 x = Integer.parseInt(request.getParameter("input1"));
            } catch(Exception e){
                errormsg+=" Hiba az első paraméterrel, nem szám <br />";
            }

            try {
                 y = Integer.parseInt(request.getParameter("input2"));
            } catch(Exception e){
                errormsg+=" Hiba az első paraméterrel, nem szám <br />";
            }




            if (errormsg.isEmpty()){
              out.println("Összeg: "+ (x+y));
            } else{
                out.println("Hiba van!!!! <br />");
                out.println(errormsg);
            }



            out.println("</body>");
            out.println("</html>");

            



        } finally { 
            out.close();
        }
    } 

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    } 

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
